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                    官方Shell
            
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                    Golang
            
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                    Aop
            
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                    New And Make
            
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                    Readme
            
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                    Reflect
            
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                    String
            
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                    Tag
            
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                    Clouser
            
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                        <b>1.6.4.</b>
                    
                    Err 优雅处理
            
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                    Go Module 2
            
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                    Go Mod
            
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                    Gocraftwork
            
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                    Oauth
            
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                    Readme
            
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                    Swagger
            
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                    Tls
            
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                    代码走读
            
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                    2020.5.26
            
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                    任务队列
            
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                        <b>1.6.13.1.</b>
                    
                    Gocraft Worker
            
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                    Readme
            
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                        <b>1.6.14.</b>
                    
                    参数校验
            
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                    Istio
            
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                    Virtualservice
            
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                    Java
            
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                        <b>1.8.1.</b>
                    
                    Jvm
            
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                        <b>1.8.2.</b>
                    
                    Typescript
            
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                        <b>1.9.</b>
                    
                    Kubernetes
            
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                        <b>1.9.1.</b>
                    
                    APIService
            
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                        <b>1.9.2.</b>
                    
                    CAK
            
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        <li class="chapter " data-level="1.9.3" data-path="../kubernetes/Deployment 的实现原理.html">
            
                <a href="../kubernetes/Deployment 的实现原理.html">
            
                    
                        <b>1.9.3.</b>
                    
                    Deployment 的实现原理
            
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        <li class="chapter " data-level="1.9.4" data-path="../kubernetes/K8s源码/">
            
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                        <b>1.9.4.</b>
                    
                    K8s源码
            
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                        <b>1.9.4.1.</b>
                    
                    Calico 源码分析
            
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                        <b>1.9.4.2.</b>
                    
                    Garbage Collector Controller 源码分析
            
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                        <b>1.9.4.3.</b>
                    
                    Job
            
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                        <b>1.9.4.4.</b>
                    
                    Kube Proxy Iptables
            
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        <li class="chapter " data-level="1.9.4.5" data-path="../kubernetes/K8s源码/kube-proxy-ipvs.html">
            
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                        <b>1.9.4.5.</b>
                    
                    Kube Proxy Ipvs
            
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                        <b>1.9.4.6.</b>
                    
                    Kube Proxy
            
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                        <b>1.9.4.7.</b>
                    
                    Kubectl Exec
            
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                        <b>1.9.4.8.</b>
                    
                    Kubectl源码阅读1
            
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                <a href="../kubernetes/K8s源码/kubectl源码阅读2.html">
            
                    
                        <b>1.9.4.9.</b>
                    
                    Kubectl源码阅读2
            
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                        <b>1.9.4.10.</b>
                    
                    Readme
            
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                        <b>1.9.4.11.</b>
                    
                    Schedule
            
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                <a href="../kubernetes/K8s源码/scheme.html">
            
                    
                        <b>1.9.4.12.</b>
                    
                    Scheme
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.4.13" data-path="../kubernetes/K8s源码/调度队列.html">
            
                <a href="../kubernetes/K8s源码/调度队列.html">
            
                    
                        <b>1.9.4.13.</b>
                    
                    调度队列
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.9.5" data-path="../kubernetes/Karmada.html">
            
                <a href="../kubernetes/Karmada.html">
            
                    
                        <b>1.9.5.</b>
                    
                    Karmada
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.6" data-path="../kubernetes/Pixie.html">
            
                <a href="../kubernetes/Pixie.html">
            
                    
                        <b>1.9.6.</b>
                    
                    Pixie
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.7" data-path="../kubernetes/admission access.html">
            
                <a href="../kubernetes/admission access.html">
            
                    
                        <b>1.9.7.</b>
                    
                    Admission Access
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.8" data-path="../kubernetes/ccm.html">
            
                <a href="../kubernetes/ccm.html">
            
                    
                        <b>1.9.8.</b>
                    
                    Ccm
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.9" data-path="../kubernetes/client-go.html">
            
                <a href="../kubernetes/client-go.html">
            
                    
                        <b>1.9.9.</b>
                    
                    Client Go
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.10" data-path="../kubernetes/command.html">
            
                <a href="../kubernetes/command.html">
            
                    
                        <b>1.9.10.</b>
                    
                    Command
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.11" data-path="../kubernetes/controller.html">
            
                <a href="../kubernetes/controller.html">
            
                    
                        <b>1.9.11.</b>
                    
                    Controller
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.12" data-path="../kubernetes/copy docker config.html">
            
                <a href="../kubernetes/copy docker config.html">
            
                    
                        <b>1.9.12.</b>
                    
                    Copy Docker Config
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.13" data-path="../kubernetes/etcd-operation.html">
            
                <a href="../kubernetes/etcd-operation.html">
            
                    
                        <b>1.9.13.</b>
                    
                    Etcd Operation
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.14" data-path="../kubernetes/gc.html">
            
                <a href="../kubernetes/gc.html">
            
                    
                        <b>1.9.14.</b>
                    
                    Gc
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.15" data-path="../kubernetes/helm chart.html">
            
                <a href="../kubernetes/helm chart.html">
            
                    
                        <b>1.9.15.</b>
                    
                    Helm Chart
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.16" data-path="../kubernetes/helm.html">
            
                <a href="../kubernetes/helm.html">
            
                    
                        <b>1.9.16.</b>
                    
                    Helm
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.17" >
            
                <span>
            
                    
                        <b>1.9.17.</b>
                    
                    Helm
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.9.17.1" data-path="../kubernetes/helm/charts.html">
            
                <a href="../kubernetes/helm/charts.html">
            
                    
                        <b>1.9.17.1.</b>
                    
                    Charts
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.17.2" data-path="../kubernetes/helm/helm 钩子函数.html">
            
                <a href="../kubernetes/helm/helm 钩子函数.html">
            
                    
                        <b>1.9.17.2.</b>
                    
                    Helm 钩子函数
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.17.3" data-path="../kubernetes/helm/helm-operator.html">
            
                <a href="../kubernetes/helm/helm-operator.html">
            
                    
                        <b>1.9.17.3.</b>
                    
                    Helm Operator
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.17.4" data-path="../kubernetes/helm/文档查询.html">
            
                <a href="../kubernetes/helm/文档查询.html">
            
                    
                        <b>1.9.17.4.</b>
                    
                    文档查询
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.17.5" data-path="../kubernetes/helm/语法.html">
            
                <a href="../kubernetes/helm/语法.html">
            
                    
                        <b>1.9.17.5.</b>
                    
                    语法
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.9.18" data-path="../kubernetes/install.html">
            
                <a href="../kubernetes/install.html">
            
                    
                        <b>1.9.18.</b>
                    
                    Install
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.19" data-path="../kubernetes/istio-inject.html">
            
                <a href="../kubernetes/istio-inject.html">
            
                    
                        <b>1.9.19.</b>
                    
                    Istio Inject
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.20" >
            
                <span>
            
                    
                        <b>1.9.20.</b>
                    
                    KubeEdge
            
                </span>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.21" data-path="../kubernetes/kuber-apiserver-flag.html">
            
                <a href="../kubernetes/kuber-apiserver-flag.html">
            
                    
                        <b>1.9.21.</b>
                    
                    Kuber Apiserver Flag
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.22" data-path="../kubernetes/kubernetes-client.html">
            
                <a href="../kubernetes/kubernetes-client.html">
            
                    
                        <b>1.9.22.</b>
                    
                    Kubernetes Client
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.23" data-path="../kubernetes/kubernetes灾备.html">
            
                <a href="../kubernetes/kubernetes灾备.html">
            
                    
                        <b>1.9.23.</b>
                    
                    Kubernetes灾备
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.24" data-path="../kubernetes/kubesphere/">
            
                <a href="../kubernetes/kubesphere/">
            
                    
                        <b>1.9.24.</b>
                    
                    Kubesphere
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.9.24.1" data-path="../kubernetes/kubesphere/helm.html">
            
                <a href="../kubernetes/kubesphere/helm.html">
            
                    
                        <b>1.9.24.1.</b>
                    
                    Helm
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.24.2" data-path="../kubernetes/kubesphere/readme.html">
            
                <a href="../kubernetes/kubesphere/readme.html">
            
                    
                        <b>1.9.24.2.</b>
                    
                    Readme
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.9.25" data-path="../kubernetes/kubevela/">
            
                <a href="../kubernetes/kubevela/">
            
                    
                        <b>1.9.25.</b>
                    
                    Kubevela
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.9.25.1" data-path="../kubernetes/kubevela/KubeVela 功能.html">
            
                <a href="../kubernetes/kubevela/KubeVela 功能.html">
            
                    
                        <b>1.9.25.1.</b>
                    
                    KubeVela 功能
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.25.2" data-path="../kubernetes/kubevela/cue.html">
            
                <a href="../kubernetes/kubevela/cue.html">
            
                    
                        <b>1.9.25.2.</b>
                    
                    Cue
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.25.3" data-path="../kubernetes/kubevela/oam.html">
            
                <a href="../kubernetes/kubevela/oam.html">
            
                    
                        <b>1.9.25.3.</b>
                    
                    Oam
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.25.4" data-path="../kubernetes/kubevela/readme.html">
            
                <a href="../kubernetes/kubevela/readme.html">
            
                    
                        <b>1.9.25.4.</b>
                    
                    Readme
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.25.5" data-path="../kubernetes/kubevela/rollout design.html">
            
                <a href="../kubernetes/kubevela/rollout design.html">
            
                    
                        <b>1.9.25.5.</b>
                    
                    Rollout Design
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.25.6" data-path="../kubernetes/kubevela/vela run.html">
            
                <a href="../kubernetes/kubevela/vela run.html">
            
                    
                        <b>1.9.25.6.</b>
                    
                    Vela Run
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.25.7" data-path="../kubernetes/kubevela/vela up.html">
            
                <a href="../kubernetes/kubevela/vela up.html">
            
                    
                        <b>1.9.25.7.</b>
                    
                    Vela Up
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.25.8" data-path="../kubernetes/kubevela/vela-cluster.html">
            
                <a href="../kubernetes/kubevela/vela-cluster.html">
            
                    
                        <b>1.9.25.8.</b>
                    
                    Vela Cluster
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.25.9" data-path="../kubernetes/kubevela/vela-helm.html">
            
                <a href="../kubernetes/kubevela/vela-helm.html">
            
                    
                        <b>1.9.25.9.</b>
                    
                    Vela Helm
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.25.10" data-path="../kubernetes/kubevela/vela-pk-oam.html">
            
                <a href="../kubernetes/kubevela/vela-pk-oam.html">
            
                    
                        <b>1.9.25.10.</b>
                    
                    Vela Pk Oam
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.9.26" data-path="../kubernetes/mk-cert.html">
            
                <a href="../kubernetes/mk-cert.html">
            
                    
                        <b>1.9.26.</b>
                    
                    Mk Cert
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.27" data-path="../kubernetes/open_swagger-ui.html">
            
                <a href="../kubernetes/open_swagger-ui.html">
            
                    
                        <b>1.9.27.</b>
                    
                    Open Swagger Ui
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.28" data-path="../kubernetes/readme.html">
            
                <a href="../kubernetes/readme.html">
            
                    
                        <b>1.9.28.</b>
                    
                    Readme
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.29" data-path="../kubernetes/task/">
            
                <a href="../kubernetes/task/">
            
                    
                        <b>1.9.29.</b>
                    
                    Task
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.9.29.1" data-path="../kubernetes/task/HPA.html">
            
                <a href="../kubernetes/task/HPA.html">
            
                    
                        <b>1.9.29.1.</b>
                    
                    HPA
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.29.2" data-path="../kubernetes/task/kubectl patch.html">
            
                <a href="../kubernetes/task/kubectl patch.html">
            
                    
                        <b>1.9.29.2.</b>
                    
                    Kubectl Patch
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.29.3" data-path="../kubernetes/task/pod 信息注入.html">
            
                <a href="../kubernetes/task/pod 信息注入.html">
            
                    
                        <b>1.9.29.3.</b>
                    
                    Pod 信息注入
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.29.4" data-path="../kubernetes/task/pod 垂直扩缩容.html">
            
                <a href="../kubernetes/task/pod 垂直扩缩容.html">
            
                    
                        <b>1.9.29.4.</b>
                    
                    Pod 垂直扩缩容
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.29.5" data-path="../kubernetes/task/readme.html">
            
                <a href="../kubernetes/task/readme.html">
            
                    
                        <b>1.9.29.5.</b>
                    
                    Readme
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.29.6" data-path="../kubernetes/task/server-side-apply.html">
            
                <a href="../kubernetes/task/server-side-apply.html">
            
                    
                        <b>1.9.29.6.</b>
                    
                    Server Side Apply
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.29.7" data-path="../kubernetes/task/准入控制.html">
            
                <a href="../kubernetes/task/准入控制.html">
            
                    
                        <b>1.9.29.7.</b>
                    
                    准入控制
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.29.8" data-path="../kubernetes/task/聚合api.html">
            
                <a href="../kubernetes/task/聚合api.html">
            
                    
                        <b>1.9.29.8.</b>
                    
                    聚合Api
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.29.9" data-path="../kubernetes/task/资源预留配置.html">
            
                <a href="../kubernetes/task/资源预留配置.html">
            
                    
                        <b>1.9.29.9.</b>
                    
                    资源预留配置
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.9.30" data-path="../kubernetes/webhook.html">
            
                <a href="../kubernetes/webhook.html">
            
                    
                        <b>1.9.30.</b>
                    
                    Webhook
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.31" data-path="../kubernetes/一致性认证.html">
            
                <a href="../kubernetes/一致性认证.html">
            
                    
                        <b>1.9.31.</b>
                    
                    一致性认证
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.32" data-path="../kubernetes/专利名词.html">
            
                <a href="../kubernetes/专利名词.html">
            
                    
                        <b>1.9.32.</b>
                    
                    专利名词
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.33" data-path="../kubernetes/删除namespace.html">
            
                <a href="../kubernetes/删除namespace.html">
            
                    
                        <b>1.9.33.</b>
                    
                    删除Namespace
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.34" data-path="../kubernetes/简化多集群.html">
            
                <a href="../kubernetes/简化多集群.html">
            
                    
                        <b>1.9.34.</b>
                    
                    简化多集群
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.35" data-path="../kubernetes/网络插件/">
            
                <a href="../kubernetes/网络插件/">
            
                    
                        <b>1.9.35.</b>
                    
                    网络插件
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.9.35.1" data-path="../kubernetes/网络插件/calico.html">
            
                <a href="../kubernetes/网络插件/calico.html">
            
                    
                        <b>1.9.35.1.</b>
                    
                    Calico
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.35.2" data-path="../kubernetes/网络插件/cilium.html">
            
                <a href="../kubernetes/网络插件/cilium.html">
            
                    
                        <b>1.9.35.2.</b>
                    
                    Cilium
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.35.3" data-path="../kubernetes/网络插件/ebpf.html">
            
                <a href="../kubernetes/网络插件/ebpf.html">
            
                    
                        <b>1.9.35.3.</b>
                    
                    Ebpf
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.35.4" data-path="../kubernetes/网络插件/readme.html">
            
                <a href="../kubernetes/网络插件/readme.html">
            
                    
                        <b>1.9.35.4.</b>
                    
                    Readme
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.9.36" data-path="../kubernetes/镜像/">
            
                <a href="../kubernetes/镜像/">
            
                    
                        <b>1.9.36.</b>
                    
                    镜像
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.9.36.1" data-path="../kubernetes/镜像/Containerd Stargz Snapshotter.html">
            
                <a href="../kubernetes/镜像/Containerd Stargz Snapshotter.html">
            
                    
                        <b>1.9.36.1.</b>
                    
                    Containerd Stargz Snapshotter
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.36.2" data-path="../kubernetes/镜像/OCI.html">
            
                <a href="../kubernetes/镜像/OCI.html">
            
                    
                        <b>1.9.36.2.</b>
                    
                    OCI
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.36.3" data-path="../kubernetes/镜像/harbor/">
            
                <a href="../kubernetes/镜像/harbor/">
            
                    
                        <b>1.9.36.3.</b>
                    
                    Harbor
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.9.36.3.1" data-path="../kubernetes/镜像/harbor/readme.html">
            
                <a href="../kubernetes/镜像/harbor/readme.html">
            
                    
                        <b>1.9.36.3.1.</b>
                    
                    Readme
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.9.36.4" data-path="../kubernetes/镜像/readme.html">
            
                <a href="../kubernetes/镜像/readme.html">
            
                    
                        <b>1.9.36.4.</b>
                    
                    Readme
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.36.5" data-path="../kubernetes/镜像/自动构建镜像.html">
            
                <a href="../kubernetes/镜像/自动构建镜像.html">
            
                    
                        <b>1.9.36.5.</b>
                    
                    自动构建镜像
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.36.6" data-path="../kubernetes/镜像/镜像加速方案.html">
            
                <a href="../kubernetes/镜像/镜像加速方案.html">
            
                    
                        <b>1.9.36.6.</b>
                    
                    镜像加速方案
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.9.36.7" data-path="../kubernetes/镜像/镜像延迟加载技术解析.html">
            
                <a href="../kubernetes/镜像/镜像延迟加载技术解析.html">
            
                    
                        <b>1.9.36.7.</b>
                    
                    镜像延迟加载技术解析
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.10" data-path="../math/">
            
                <a href="../math/">
            
                    
                        <b>1.10.</b>
                    
                    Math
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.10.1" data-path="../math/readme.html">
            
                <a href="../math/readme.html">
            
                    
                        <b>1.10.1.</b>
                    
                    Readme
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.10.2" data-path="../math/泊松分布.html">
            
                <a href="../math/泊松分布.html">
            
                    
                        <b>1.10.2.</b>
                    
                    泊松分布
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.11" data-path="../效率/">
            
                <a href="../效率/">
            
                    
                        <b>1.11.</b>
                    
                    效率
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.11.1" data-path="../效率/cat.html">
            
                <a href="../效率/cat.html">
            
                    
                        <b>1.11.1.</b>
                    
                    Cat
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.2" data-path="../效率/docker volume clean.html">
            
                <a href="../效率/docker volume clean.html">
            
                    
                        <b>1.11.2.</b>
                    
                    Docker Volume Clean
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.3" data-path="../效率/git book.html">
            
                <a href="../效率/git book.html">
            
                    
                        <b>1.11.3.</b>
                    
                    Git Book
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.4" data-path="../效率/git.html">
            
                <a href="../效率/git.html">
            
                    
                        <b>1.11.4.</b>
                    
                    Git
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.5" data-path="../效率/linux command.html">
            
                <a href="../效率/linux command.html">
            
                    
                        <b>1.11.5.</b>
                    
                    Linux Command
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.6" data-path="../效率/linux 内核.html">
            
                <a href="../效率/linux 内核.html">
            
                    
                        <b>1.11.6.</b>
                    
                    Linux 内核
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.7" data-path="../效率/macos path.html">
            
                <a href="../效率/macos path.html">
            
                    
                        <b>1.11.7.</b>
                    
                    Macos Path
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.8" data-path="../效率/nfs.html">
            
                <a href="../效率/nfs.html">
            
                    
                        <b>1.11.8.</b>
                    
                    Nfs
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.9" data-path="../效率/nginx.html">
            
                <a href="../效率/nginx.html">
            
                    
                        <b>1.11.9.</b>
                    
                    Nginx
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.10" data-path="../效率/nginx2.html">
            
                <a href="../效率/nginx2.html">
            
                    
                        <b>1.11.10.</b>
                    
                    Nginx2
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.11" data-path="../效率/oauth2.html">
            
                <a href="../效率/oauth2.html">
            
                    
                        <b>1.11.11.</b>
                    
                    Oauth2
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.12" data-path="../效率/ovftool.html">
            
                <a href="../效率/ovftool.html">
            
                    
                        <b>1.11.12.</b>
                    
                    Ovftool
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.13" data-path="../效率/readme.html">
            
                <a href="../效率/readme.html">
            
                    
                        <b>1.11.13.</b>
                    
                    Readme
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.14" data-path="../效率/sed.html">
            
                <a href="../效率/sed.html">
            
                    
                        <b>1.11.14.</b>
                    
                    Sed
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.15" data-path="../效率/shell_judge.html">
            
                <a href="../效率/shell_judge.html">
            
                    
                        <b>1.11.15.</b>
                    
                    Shell Judge
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.16" data-path="../效率/sshpass.html">
            
                <a href="../效率/sshpass.html">
            
                    
                        <b>1.11.16.</b>
                    
                    Sshpass
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.17" data-path="../效率/telepresence.html">
            
                <a href="../效率/telepresence.html">
            
                    
                        <b>1.11.17.</b>
                    
                    Telepresence
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.18" data-path="../效率/typora.html">
            
                <a href="../效率/typora.html">
            
                    
                        <b>1.11.18.</b>
                    
                    Typora
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.19" data-path="../效率/url encode.html">
            
                <a href="../效率/url encode.html">
            
                    
                        <b>1.11.19.</b>
                    
                    Url Encode
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.20" data-path="../效率/vim.html">
            
                <a href="../效率/vim.html">
            
                    
                        <b>1.11.20.</b>
                    
                    Vim
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.21" data-path="../效率/yum.html">
            
                <a href="../效率/yum.html">
            
                    
                        <b>1.11.21.</b>
                    
                    Yum
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.22" data-path="../效率/内网穿透.html">
            
                <a href="../效率/内网穿透.html">
            
                    
                        <b>1.11.22.</b>
                    
                    内网穿透
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.23" data-path="../效率/科学上网.html">
            
                <a href="../效率/科学上网.html">
            
                    
                        <b>1.11.23.</b>
                    
                    科学上网
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.11.24" data-path="../效率/证书制作.html">
            
                <a href="../效率/证书制作.html">
            
                    
                        <b>1.11.24.</b>
                    
                    证书制作
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.12" >
            
                <span>
            
                    
                        <b>1.12.</b>
                    
                    杂谈
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.12.1" data-path="../杂谈/论好文章和烂文章.html">
            
                <a href="../杂谈/论好文章和烂文章.html">
            
                    
                        <b>1.12.1.</b>
                    
                    论好文章和烂文章
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.13" data-path="../测试/">
            
                <a href="../测试/">
            
                    
                        <b>1.13.</b>
                    
                    测试
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.13.1" data-path="../测试/ginkgo/">
            
                <a href="../测试/ginkgo/">
            
                    
                        <b>1.13.1.</b>
                    
                    Ginkgo
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.13.1.1" data-path="../测试/ginkgo/ginkgo.html">
            
                <a href="../测试/ginkgo/ginkgo.html">
            
                    
                        <b>1.13.1.1.</b>
                    
                    Ginkgo
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.1.2" data-path="../测试/ginkgo/ginkgo_cmd.html">
            
                <a href="../测试/ginkgo/ginkgo_cmd.html">
            
                    
                        <b>1.13.1.2.</b>
                    
                    Ginkgo Cmd
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.1.3" data-path="../测试/ginkgo/readme.html">
            
                <a href="../测试/ginkgo/readme.html">
            
                    
                        <b>1.13.1.3.</b>
                    
                    Readme
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.13.2" data-path="../测试/golang-test.html">
            
                <a href="../测试/golang-test.html">
            
                    
                        <b>1.13.2.</b>
                    
                    Golang Test
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.3" data-path="../测试/http测试.html">
            
                <a href="../测试/http测试.html">
            
                    
                        <b>1.13.3.</b>
                    
                    Http测试
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.4" data-path="../测试/readme.html">
            
                <a href="../测试/readme.html">
            
                    
                        <b>1.13.4.</b>
                    
                    Readme
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.5" data-path="../测试/其他功能.html">
            
                <a href="../测试/其他功能.html">
            
                    
                        <b>1.13.5.</b>
                    
                    其他功能
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.6" data-path="../测试/单元测试.html">
            
                <a href="../测试/单元测试.html">
            
                    
                        <b>1.13.6.</b>
                    
                    单元测试
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.7" data-path="../测试/单元测试2.html">
            
                <a href="../测试/单元测试2.html">
            
                    
                        <b>1.13.7.</b>
                    
                    单元测试2
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.8" data-path="../测试/基准测试.html">
            
                <a href="../测试/基准测试.html">
            
                    
                        <b>1.13.8.</b>
                    
                    基准测试
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.9" data-path="../测试/子测试与子基准测试.html">
            
                <a href="../测试/子测试与子基准测试.html">
            
                    
                        <b>1.13.9.</b>
                    
                    子测试与子基准测试
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.10" data-path="../测试/并行测试.html">
            
                <a href="../测试/并行测试.html">
            
                    
                        <b>1.13.10.</b>
                    
                    并行测试
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.11" data-path="../测试/质量检查/">
            
                <a href="../测试/质量检查/">
            
                    
                        <b>1.13.11.</b>
                    
                    质量检查
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.13.11.1" data-path="../测试/质量检查/Sonar.html">
            
                <a href="../测试/质量检查/Sonar.html">
            
                    
                        <b>1.13.11.1.</b>
                    
                    Sonar
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.11.2" data-path="../测试/质量检查/go_lint.html">
            
                <a href="../测试/质量检查/go_lint.html">
            
                    
                        <b>1.13.11.2.</b>
                    
                    Go Lint
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.13.11.3" data-path="../测试/质量检查/readme.html">
            
                <a href="../测试/质量检查/readme.html">
            
                    
                        <b>1.13.11.3.</b>
                    
                    Readme
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.14" data-path="../规范/">
            
                <a href="../规范/">
            
                    
                        <b>1.14.</b>
                    
                    规范
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.14.1" data-path="../规范/CodeReviewComments.html">
            
                <a href="../规范/CodeReviewComments.html">
            
                    
                        <b>1.14.1.</b>
                    
                    CodeReviewComments
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.14.2" data-path="../规范/git规范.html">
            
                <a href="../规范/git规范.html">
            
                    
                        <b>1.14.2.</b>
                    
                    Git规范
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.14.3" data-path="../规范/golang 代码规范.html">
            
                <a href="../规范/golang 代码规范.html">
            
                    
                        <b>1.14.3.</b>
                    
                    Golang 代码规范
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.14.4" data-path="../规范/readme.html">
            
                <a href="../规范/readme.html">
            
                    
                        <b>1.14.4.</b>
                    
                    Readme
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.14.5" data-path="../规范/代码走读.html">
            
                <a href="../规范/代码走读.html">
            
                    
                        <b>1.14.5.</b>
                    
                    代码走读
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.15" data-path="../设计模式/">
            
                <a href="../设计模式/">
            
                    
                        <b>1.15.</b>
                    
                    设计模式
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.15.1" data-path="../设计模式/readme.html">
            
                <a href="../设计模式/readme.html">
            
                    
                        <b>1.15.1.</b>
                    
                    Readme
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.2" data-path="../设计模式/创建模型/">
            
                <a href="../设计模式/创建模型/">
            
                    
                        <b>1.15.2.</b>
                    
                    创建模型
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.15.2.1" data-path="../设计模式/创建模型/readme.html">
            
                <a href="../设计模式/创建模型/readme.html">
            
                    
                        <b>1.15.2.1.</b>
                    
                    Readme
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.2.2" data-path="../设计模式/创建模型/创建者模型.html">
            
                <a href="../设计模式/创建模型/创建者模型.html">
            
                    
                        <b>1.15.2.2.</b>
                    
                    创建者模型
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.2.3" data-path="../设计模式/创建模型/单例模式.html">
            
                <a href="../设计模式/创建模型/单例模式.html">
            
                    
                        <b>1.15.2.3.</b>
                    
                    单例模式
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.2.4" data-path="../设计模式/创建模型/原型模式.html">
            
                <a href="../设计模式/创建模型/原型模式.html">
            
                    
                        <b>1.15.2.4.</b>
                    
                    原型模式
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.2.5" data-path="../设计模式/创建模型/工厂方法.html">
            
                <a href="../设计模式/创建模型/工厂方法.html">
            
                    
                        <b>1.15.2.5.</b>
                    
                    工厂方法
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.2.6" data-path="../设计模式/创建模型/抽象工厂.html">
            
                <a href="../设计模式/创建模型/抽象工厂.html">
            
                    
                        <b>1.15.2.6.</b>
                    
                    抽象工厂
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.2.7" data-path="../设计模式/创建模型/简单工厂.html">
            
                <a href="../设计模式/创建模型/简单工厂.html">
            
                    
                        <b>1.15.2.7.</b>
                    
                    简单工厂
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.15.3" data-path="../设计模式/结构型模型/">
            
                <a href="../设计模式/结构型模型/">
            
                    
                        <b>1.15.3.</b>
                    
                    结构型模型
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.15.3.1" data-path="../设计模式/结构型模型/readme.html">
            
                <a href="../设计模式/结构型模型/readme.html">
            
                    
                        <b>1.15.3.1.</b>
                    
                    Readme
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.3.2" data-path="../设计模式/结构型模型/享元模式.html">
            
                <a href="../设计模式/结构型模型/享元模式.html">
            
                    
                        <b>1.15.3.2.</b>
                    
                    享元模式
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.3.3" data-path="../设计模式/结构型模型/代理模式.html">
            
                <a href="../设计模式/结构型模型/代理模式.html">
            
                    
                        <b>1.15.3.3.</b>
                    
                    代理模式
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.3.4" data-path="../设计模式/结构型模型/外观模式.html">
            
                <a href="../设计模式/结构型模型/外观模式.html">
            
                    
                        <b>1.15.3.4.</b>
                    
                    外观模式
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.3.5" data-path="../设计模式/结构型模型/桥模式.html">
            
                <a href="../设计模式/结构型模型/桥模式.html">
            
                    
                        <b>1.15.3.5.</b>
                    
                    桥模式
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.3.6" data-path="../设计模式/结构型模型/组合模式.html">
            
                <a href="../设计模式/结构型模型/组合模式.html">
            
                    
                        <b>1.15.3.6.</b>
                    
                    组合模式
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.3.7" data-path="../设计模式/结构型模型/装饰模式.html">
            
                <a href="../设计模式/结构型模型/装饰模式.html">
            
                    
                        <b>1.15.3.7.</b>
                    
                    装饰模式
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.3.8" data-path="../设计模式/结构型模型/适配器模式.html">
            
                <a href="../设计模式/结构型模型/适配器模式.html">
            
                    
                        <b>1.15.3.8.</b>
                    
                    适配器模式
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="1.15.4" data-path="../设计模式/行为型模型/">
            
                <a href="../设计模式/行为型模型/">
            
                    
                        <b>1.15.4.</b>
                    
                    行为型模型
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.15.4.1" data-path="../设计模式/行为型模型/readme.html">
            
                <a href="../设计模式/行为型模型/readme.html">
            
                    
                        <b>1.15.4.1.</b>
                    
                    Readme
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.4.2" data-path="../设计模式/行为型模型/中介者模式.html">
            
                <a href="../设计模式/行为型模型/中介者模式.html">
            
                    
                        <b>1.15.4.2.</b>
                    
                    中介者模式
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.4.3" data-path="../设计模式/行为型模型/命令模式.html">
            
                <a href="../设计模式/行为型模型/命令模式.html">
            
                    
                        <b>1.15.4.3.</b>
                    
                    命令模式
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.4.4" data-path="../设计模式/行为型模型/备忘录模式.html">
            
                <a href="../设计模式/行为型模型/备忘录模式.html">
            
                    
                        <b>1.15.4.4.</b>
                    
                    备忘录模式
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.4.5" data-path="../设计模式/行为型模型/模板方法模式.html">
            
                <a href="../设计模式/行为型模型/模板方法模式.html">
            
                    
                        <b>1.15.4.5.</b>
                    
                    模板方法模式
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.4.6" data-path="../设计模式/行为型模型/状态模式.html">
            
                <a href="../设计模式/行为型模型/状态模式.html">
            
                    
                        <b>1.15.4.6.</b>
                    
                    状态模式
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.4.7" data-path="../设计模式/行为型模型/策略模式.html">
            
                <a href="../设计模式/行为型模型/策略模式.html">
            
                    
                        <b>1.15.4.7.</b>
                    
                    策略模式
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.4.8" data-path="../设计模式/行为型模型/职责链模式.html">
            
                <a href="../设计模式/行为型模型/职责链模式.html">
            
                    
                        <b>1.15.4.8.</b>
                    
                    职责链模式
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.4.9" data-path="../设计模式/行为型模型/观察者模式.html">
            
                <a href="../设计模式/行为型模型/观察者模式.html">
            
                    
                        <b>1.15.4.9.</b>
                    
                    观察者模式
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.4.10" data-path="../设计模式/行为型模型/解释器模式.html">
            
                <a href="../设计模式/行为型模型/解释器模式.html">
            
                    
                        <b>1.15.4.10.</b>
                    
                    解释器模式
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.4.11" data-path="../设计模式/行为型模型/访问者模式.html">
            
                <a href="../设计模式/行为型模型/访问者模式.html">
            
                    
                        <b>1.15.4.11.</b>
                    
                    访问者模式
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.15.4.12" data-path="../设计模式/行为型模型/迭代器模式.html">
            
                <a href="../设计模式/行为型模型/迭代器模式.html">
            
                    
                        <b>1.15.4.12.</b>
                    
                    迭代器模式
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    

            </ul>
            
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        <a href="../.." >Mongodb</a>
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                                <div id="anchor-navigation-ex-navbar"><i class="fa fa-anchor"></i><ul><li><a href="#mongodb">mongodb</a></li></ul></div><a href="#mongodb" id="anchorNavigationExGoTop"><i class="fa fa-arrow-up"></i></a><h1 id="mongodb"><a name="mongodb" class="anchor-navigation-ex-anchor" href="#mongodb"><i class="fa fa-link" aria-hidden="true"></i></a>mongodb</h1>
<p>mongoDB&#x662F;&#x76EE;&#x524D;&#x6BD4;&#x8F83;&#x6D41;&#x884C;&#x7684;&#x4E00;&#x4E2A;&#x57FA;&#x4E8E;&#x5206;&#x5E03;&#x5F0F;&#x6587;&#x4EF6;&#x5B58;&#x50A8;&#x7684;&#x6570;&#x636E;&#x5E93;&#xFF0C;&#x5B83;&#x662F;&#x4E00;&#x4E2A;&#x4ECB;&#x4E8E;&#x5173;&#x7CFB;&#x6570;&#x636E;&#x5E93;&#x548C;&#x975E;&#x5173;&#x7CFB;&#x6570;&#x636E;&#x5E93;(NoSQL)&#x4E4B;&#x95F4;&#x7684;&#x4EA7;&#x54C1;&#xFF0C;&#x662F;&#x975E;&#x5173;&#x7CFB;&#x6570;&#x636E;&#x5E93;&#x5F53;&#x4E2D;&#x529F;&#x80FD;&#x6700;&#x4E30;&#x5BCC;&#xFF0C;&#x6700;&#x50CF;&#x5173;&#x7CFB;&#x6570;&#x636E;&#x5E93;&#x7684;&#x3002;</p>
<h3 id="mongodb&#x4ECB;&#x7ECD;"><a name="mongodb&#x4ECB;&#x7ECD;" class="anchor-navigation-ex-anchor" href="#mongodb&#x4ECB;&#x7ECD;"><i class="fa fa-link" aria-hidden="true"></i></a>mongoDB&#x4ECB;&#x7ECD;</h3>
<p>mongoDB&#x662F;&#x76EE;&#x524D;&#x6BD4;&#x8F83;&#x6D41;&#x884C;&#x7684;&#x4E00;&#x4E2A;&#x57FA;&#x4E8E;&#x5206;&#x5E03;&#x5F0F;&#x6587;&#x4EF6;&#x5B58;&#x50A8;&#x7684;&#x6570;&#x636E;&#x5E93;&#xFF0C;&#x5B83;&#x662F;&#x4E00;&#x4E2A;&#x4ECB;&#x4E8E;&#x5173;&#x7CFB;&#x6570;&#x636E;&#x5E93;&#x548C;&#x975E;&#x5173;&#x7CFB;&#x6570;&#x636E;&#x5E93;(NoSQL)&#x4E4B;&#x95F4;&#x7684;&#x4EA7;&#x54C1;&#xFF0C;&#x662F;&#x975E;&#x5173;&#x7CFB;&#x6570;&#x636E;&#x5E93;&#x5F53;&#x4E2D;&#x529F;&#x80FD;&#x6700;&#x4E30;&#x5BCC;&#xFF0C;&#x6700;&#x50CF;&#x5173;&#x7CFB;&#x6570;&#x636E;&#x5E93;&#x7684;&#x3002;</p>
<p>mongoDB&#x4E2D;&#x5C06;&#x4E00;&#x6761;&#x6570;&#x636E;&#x5B58;&#x50A8;&#x4E3A;&#x4E00;&#x4E2A;&#x6587;&#x6863;&#xFF08;document&#xFF09;&#xFF0C;&#x6570;&#x636E;&#x7ED3;&#x6784;&#x7531;&#x952E;&#x503C;&#xFF08;key-value&#xFF09;&#x5BF9;&#x7EC4;&#x6210;&#x3002; &#x5176;&#x4E2D;&#x6587;&#x6863;&#x7C7B;&#x4F3C;&#x4E8E;&#x6211;&#x4EEC;&#x5E73;&#x5E38;&#x7F16;&#x7A0B;&#x4E2D;&#x7528;&#x5230;&#x7684;JSON&#x5BF9;&#x8C61;&#x3002; &#x6587;&#x6863;&#x4E2D;&#x7684;&#x5B57;&#x6BB5;&#x503C;&#x53EF;&#x4EE5;&#x5305;&#x542B;&#x5176;&#x4ED6;&#x6587;&#x6863;&#xFF0C;&#x6570;&#x7EC4;&#x53CA;&#x6587;&#x6863;&#x6570;&#x7EC4;</p>
<h3 id="&#x76F8;&#x5173;&#x6982;&#x5FF5;"><a name="&#x76F8;&#x5173;&#x6982;&#x5FF5;" class="anchor-navigation-ex-anchor" href="#&#x76F8;&#x5173;&#x6982;&#x5FF5;"><i class="fa fa-link" aria-hidden="true"></i></a>&#x76F8;&#x5173;&#x6982;&#x5FF5;</h3>
<table>
<thead>
<tr>
<th style="text-align:left">MongoDB&#x672F;&#x8BED;/&#x6982;&#x5FF5;</th>
<th style="text-align:left">&#x8BF4;&#x660E;</th>
<th style="text-align:left">&#x5BF9;&#x6BD4;SQL&#x672F;&#x8BED;/&#x6982;&#x5FF5;</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align:left">database</td>
<td style="text-align:left">&#x6570;&#x636E;&#x5E93;</td>
<td style="text-align:left">database</td>
</tr>
<tr>
<td style="text-align:left">collection</td>
<td style="text-align:left">&#x96C6;&#x5408;</td>
<td style="text-align:left">table</td>
</tr>
<tr>
<td style="text-align:left">document</td>
<td style="text-align:left">&#x6587;&#x6863;</td>
<td style="text-align:left">row</td>
</tr>
<tr>
<td style="text-align:left">field</td>
<td style="text-align:left">&#x5B57;&#x6BB5;</td>
<td style="text-align:left">column</td>
</tr>
<tr>
<td style="text-align:left">index</td>
<td style="text-align:left">index</td>
<td style="text-align:left">&#x7D22;&#x5F15;</td>
</tr>
<tr>
<td style="text-align:left">primary key</td>
<td style="text-align:left">&#x4E3B;&#x952E; MongoDB&#x81EA;&#x52A8;&#x5C06;_id&#x5B57;&#x6BB5;&#x8BBE;&#x7F6E;&#x4E3A;&#x4E3B;&#x952E;</td>
<td style="text-align:left">primary key</td>
</tr>
</tbody>
</table>
<h3 id="bson"><a name="bson" class="anchor-navigation-ex-anchor" href="#bson"><i class="fa fa-link" aria-hidden="true"></i></a>BSON</h3>
<p>MongoDB&#x4E2D;&#x7684;JSON&#x6587;&#x6863;&#x5B58;&#x50A8;&#x5728;&#x540D;&#x4E3A;BSON(&#x4E8C;&#x8FDB;&#x5236;&#x7F16;&#x7801;&#x7684;JSON)&#x7684;&#x4E8C;&#x8FDB;&#x5236;&#x8868;&#x793A;&#x4E2D;&#x3002;&#x4E0E;&#x5176;&#x4ED6;&#x5C06;JSON&#x6570;&#x636E;&#x5B58;&#x50A8;&#x4E3A;&#x7B80;&#x5355;&#x5B57;
&#x7B26;&#x4E32;&#x548C;&#x6570;&#x5B57;&#x7684;&#x6570;&#x636E;&#x5E93;&#x4E0D;&#x540C;&#xFF0C;BSON&#x7F16;&#x7801;&#x6269;&#x5C55;&#x4E86;JSON&#x8868;&#x793A;&#xFF0C;&#x4F7F;&#x5176;&#x5305;&#x542B;&#x989D;&#x5916;&#x7684;&#x7C7B;&#x578B;&#xFF0C;&#x5982;int&#x3001;long&#x3001;date&#x3001;&#x6D6E;&#x70B9;&#x6570;&#x548C;
decimal128&#x3002;&#x8FD9;&#x4F7F;&#x5F97;&#x5E94;&#x7528;&#x7A0B;&#x5E8F;&#x66F4;&#x5BB9;&#x6613;&#x53EF;&#x9760;&#x5730;&#x5904;&#x7406;&#x3001;&#x6392;&#x5E8F;&#x548C;&#x6BD4;&#x8F83;&#x6570;&#x636E;&#x3002;</p>
<p>&#x8FDE;&#x63A5;MongoDB&#x7684;Go&#x9A71;&#x52A8;&#x7A0B;&#x5E8F;&#x4E2D;&#x6709;&#x4E24;&#x5927;&#x7C7B;&#x578B;&#x8868;&#x793A;BSON&#x6570;&#x636E;&#xFF1A;D&#x548C;Raw&#x3002;</p>
<p>&#x7C7B;&#x578B;D&#x5BB6;&#x65CF;&#x88AB;&#x7528;&#x6765;&#x7B80;&#x6D01;&#x5730;&#x6784;&#x5EFA;&#x4F7F;&#x7528;&#x672C;&#x5730;Go&#x7C7B;&#x578B;&#x7684;BSON&#x5BF9;&#x8C61;&#x3002;&#x8FD9;&#x5BF9;&#x4E8E;&#x6784;&#x9020;&#x4F20;&#x9012;&#x7ED9;MongoDB&#x7684;&#x547D;&#x4EE4;&#x7279;&#x522B;&#x6709;&#x7528;&#x3002;D&#x5BB6;&#x65CF;&#x5305;&#x62EC;&#x56DB;&#x7C7B;:</p>
<ul>
<li>D&#xFF1A;&#x4E00;&#x4E2A;BSON&#x6587;&#x6863;&#x3002;&#x8FD9;&#x79CD;&#x7C7B;&#x578B;&#x5E94;&#x8BE5;&#x5728;&#x987A;&#x5E8F;&#x91CD;&#x8981;&#x7684;&#x60C5;&#x51B5;&#x4E0B;&#x4F7F;&#x7528;&#xFF0C;&#x6BD4;&#x5982;MongoDB&#x547D;&#x4EE4;&#x3002;</li>
<li>M&#xFF1A;&#x4E00;&#x5F20;&#x65E0;&#x5E8F;&#x7684;map&#x3002;&#x5B83;&#x548C;D&#x662F;&#x4E00;&#x6837;&#x7684;&#xFF0C;&#x53EA;&#x662F;&#x5B83;&#x4E0D;&#x4FDD;&#x6301;&#x987A;&#x5E8F;&#x3002;</li>
<li>A&#xFF1A;&#x4E00;&#x4E2A;BSON&#x6570;&#x7EC4;&#x3002;</li>
<li>E&#xFF1A;D&#x91CC;&#x9762;&#x7684;&#x4E00;&#x4E2A;&#x5143;&#x7D20;&#x3002;</li>
</ul>
<h3 id="&#x5B9E;&#x8DF5;&#x51FA;&#x771F;&#x7406;"><a name="&#x5B9E;&#x8DF5;&#x51FA;&#x771F;&#x7406;" class="anchor-navigation-ex-anchor" href="#&#x5B9E;&#x8DF5;&#x51FA;&#x771F;&#x7406;"><i class="fa fa-link" aria-hidden="true"></i></a>&#x5B9E;&#x8DF5;&#x51FA;&#x771F;&#x7406;</h3>
<h4 id="start-one-container-and-connect"><a name="start-one-container-and-connect" class="anchor-navigation-ex-anchor" href="#start-one-container-and-connect"><i class="fa fa-link" aria-hidden="true"></i></a>start one container and connect</h4>
<pre class="language-"><code>docker run -d -p 27017:27017 -e MONGO_INITDB_ROOT_USERNAME=root -e MONGO_INITDB_ROOT_PASSWORD=123456 registry.cn-hangzhou.aliyuncs.com/launcher/mongo:4.2.1
docker exec -it  $container_id sh
#mongo 192.168.1.200:27017/test -u user -p password
mongo -u root -p 123456
</code></pre><h4 id="base-operation"><a name="base-operation" class="anchor-navigation-ex-anchor" href="#base-operation"><i class="fa fa-link" aria-hidden="true"></i></a>base operation</h4>
<pre class="language-"><code>show dbs;
use test;
db.createCollection(&quot;hello&quot;);
show collections;
db.hello.insert({&quot;name&quot;:&quot;testdb&quot;});
db.hello.drop()
</code></pre><h4 id="index"><a name="index" class="anchor-navigation-ex-anchor" href="#index"><i class="fa fa-link" aria-hidden="true"></i></a>Index</h4>
<pre class="language-"><code>&#x5728;hello&#x96C6;&#x5408;&#x4E0A;&#xFF0C;&#x5EFA;&#x7ACB;&#x5BF9;ID&#x5B57;&#x6BB5;&#x7684;&#x7D22;&#x5F15;&#xFF0C;1&#x4EE3;&#x8868;&#x5347;&#x5E8F;&#x3002;
&gt;db.hello.ensureIndex({ID:1})
&#x5728;hello&#x96C6;&#x5408;&#x4E0A;&#xFF0C;&#x5EFA;&#x7ACB;&#x5BF9;ID&#x5B57;&#x6BB5;&#x3001;Name&#x5B57;&#x6BB5;&#x548C;Gender&#x5B57;&#x6BB5;&#x5EFA;&#x7ACB;&#x7D22;&#x5F15;
&gt;db.hello.ensureIndex({ID:1,Name:1,Gender:-1})
&#x67E5;&#x770B;hello&#x96C6;&#x5408;&#x4E0A;&#x7684;&#x6240;&#x6709;&#x7D22;&#x5F15;
&gt;db.hello.getIndexes()
&#x5220;&#x9664;&#x7D22;&#x5F15;&#x7528;db.collection.dropIndex()&#xFF0C;&#x6709;&#x4E00;&#x4E2A;&#x53C2;&#x6570;&#xFF0C;&#x53EF;&#x4EE5;&#x662F;&#x5EFA;&#x7ACB;&#x7D22;&#x5F15;&#x65F6;&#x6307;&#x5B9A;&#x7684;&#x5B57;&#x6BB5;&#xFF0C;&#x4E5F;&#x53EF;&#x4EE5;&#x662F;getIndex&#x770B;&#x5230;&#x7684;&#x7D22;&#x5F15;&#x540D;&#x79F0;&#x3002;
&gt;db.hello.dropIndex( &quot;IDIdx&quot; )
&gt;db.hello.dropIndex({ID:1})
</code></pre><h3 id="&#x63D2;&#x5165;"><a name="&#x63D2;&#x5165;" class="anchor-navigation-ex-anchor" href="#&#x63D2;&#x5165;"><i class="fa fa-link" aria-hidden="true"></i></a>&#x63D2;&#x5165;</h3>
<pre class="language-"><code>db.inventory.insertMany([
   { item: &quot;journal&quot;, qty: 25, size: { h: 14, w: 21, uom: &quot;cm&quot; }, status: &quot;A&quot; },
   { item: &quot;notebook&quot;, qty: 50, size: { h: 8.5, w: 11, uom: &quot;in&quot; }, status: &quot;A&quot; },
   { item: &quot;paper&quot;, qty: 100, size: { h: 8.5, w: 11, uom: &quot;in&quot; }, status: &quot;D&quot; },
   { item: &quot;planner&quot;, qty: 75, size: { h: 22.85, w: 30, uom: &quot;cm&quot; }, status: &quot;D&quot; },
   { item: &quot;postcard&quot;, qty: 45, size: { h: 10, w: 15.25, uom: &quot;cm&quot; }, status: &quot;A&quot; }
]);
</code></pre><h3 id="&#x67E5;&#x8BE2;"><a name="&#x67E5;&#x8BE2;" class="anchor-navigation-ex-anchor" href="#&#x67E5;&#x8BE2;"><i class="fa fa-link" aria-hidden="true"></i></a>&#x67E5;&#x8BE2;</h3>
<h4 id="&#x4E00;&#x822C;&#x67E5;&#x8BE2;"><a name="&#x4E00;&#x822C;&#x67E5;&#x8BE2;" class="anchor-navigation-ex-anchor" href="#&#x4E00;&#x822C;&#x67E5;&#x8BE2;"><i class="fa fa-link" aria-hidden="true"></i></a>&#x4E00;&#x822C;&#x67E5;&#x8BE2;</h4>
<pre class="language-"><code>db.inventory.find( { status: &quot;D&quot; } )
SELECT * FROM inventory WHERE status = &quot;D&quot;
</code></pre><pre class="language-"><code>db.inventory.find( { status: { $in: [ &quot;A&quot;, &quot;D&quot; ] } } )
db.inventory.find( { status: &quot;A&quot;, qty: { $lt: 30 } } )
</code></pre><pre class="language-"><code>db.inventory.find( { status: &quot;A&quot;, qty: { $lt: 30 } } )
SELECT * FROM inventory WHERE status = &quot;A&quot; AND qty &lt; 30
</code></pre><pre class="language-"><code>db.inventory.find( { $or: [ { status: &quot;A&quot; }, { qty: { $lt: 30 } } ] } )
SELECT * FROM inventory WHERE status = &quot;A&quot; OR qty &lt; 30
</code></pre><pre class="language-"><code>db.inventory.find( {
     status: &quot;A&quot;,
     $or: [ { qty: { $lt: 30 } }, { item: /^p/ } ]
} )

SELECT * FROM inventory WHERE status = &quot;A&quot; AND ( qty &lt; 30 OR item LIKE &quot;p%&quot;)
</code></pre><h4 id="query-on-embeddednested-documents"><a name="query-on-embeddednested-documents" class="anchor-navigation-ex-anchor" href="#query-on-embeddednested-documents"><i class="fa fa-link" aria-hidden="true"></i></a>Query on Embedded/Nested Documents</h4>
<pre class="language-"><code>db.inventory.find(  { size: { w: 21, h: 14, uom: &quot;cm&quot; } }  )
db.inventory.find( { &quot;size.h&quot;: { $lt: 15 } } )
db.inventory.find( { &quot;size.h&quot;: { $lt: 15 }, &quot;size.uom&quot;: &quot;in&quot;, status: &quot;D&quot; } )
</code></pre><h3 id="query-an-array"><a name="query-an-array" class="anchor-navigation-ex-anchor" href="#query-an-array"><i class="fa fa-link" aria-hidden="true"></i></a>Query an Array</h3>
<pre class="language-"><code>db.inventory.insertMany([
   { item: &quot;journal&quot;, qty: 25, tags: [&quot;blank&quot;, &quot;red&quot;], dim_cm: [ 14, 21 ] },
   { item: &quot;notebook&quot;, qty: 50, tags: [&quot;red&quot;, &quot;blank&quot;], dim_cm: [ 14, 21 ] },
   { item: &quot;paper&quot;, qty: 100, tags: [&quot;red&quot;, &quot;blank&quot;, &quot;plain&quot;], dim_cm: [ 14, 21 ] },
   { item: &quot;planner&quot;, qty: 75, tags: [&quot;blank&quot;, &quot;red&quot;], dim_cm: [ 22.85, 30 ] },
   { item: &quot;postcard&quot;, qty: 45, tags: [&quot;blue&quot;], dim_cm: [ 10, 15.25 ] }
]);
</code></pre><blockquote>
<ul>
<li><p>&#x6709;&#x987A;&#x5E8F;&#x8981;&#x6C42;</p>
<pre class="language-"><code>db.inventory.find( { tags: [&quot;red&quot;, &quot;blank&quot;] } )  # &#x53EA;&#x80FD;&#x67E5;&#x8BE2;&#x5230;&#x4E00;&#x6761;
</code></pre></li>
<li><p>&#x6CA1;&#x6709;&#x987A;&#x5E8F;&#x8981;&#x6C42;</p>
<pre class="language-"><code>db.inventory.find( { tags: { $all: [&quot;red&quot;, &quot;blank&quot;] } } )  # &#x53EF;&#x4EE5;&#x67E5;&#x8BE2;&#x5230;3&#x6761;
</code></pre></li>
<li><p>Query an Array for an Element</p>
</li>
<li>To query if the array field contains at least one element with the specified value, 
use the filter { <field>: <value> } where <value> is the element value.<pre class="language-"><code>db.inventory.find( { tags: &quot;red&quot; } )
</code></pre><h3 id="&#x66F4;&#x65B0;"><a name="&#x66F4;&#x65B0;" class="anchor-navigation-ex-anchor" href="#&#x66F4;&#x65B0;"><i class="fa fa-link" aria-hidden="true"></i></a>&#x66F4;&#x65B0;</h3>
syntax: db.collection.update(criteria, objNew, upsert, multi )</value></value></field></li>
<li>criteria:update&#x7684;&#x67E5;&#x8BE2;&#x6761;&#x4EF6;&#xFF0C;&#x7C7B;&#x4F3C;sql update&#x67E5;&#x8BE2;&#x5185;where&#x540E;&#x9762;&#x7684;</li>
<li>objNew:update&#x7684;&#x5BF9;&#x8C61;&#x548C;&#x4E00;&#x4E9B;&#x66F4;&#x65B0;&#x7684;&#x64CD;&#x4F5C;&#x7B26;&#xFF08;&#x5982;$,$inc...&#xFF09;&#x7B49;&#xFF0C;&#x4E5F;&#x53EF;&#x4EE5;&#x7406;&#x89E3;&#x4E3A;sql update&#x67E5;&#x8BE2;&#x5185;set&#x540E;&#x9762;&#x7684;&#x3002;</li>
<li>upsert : &#x5982;&#x679C;&#x4E0D;&#x5B58;&#x5728;update&#x7684;&#x8BB0;&#x5F55;&#xFF0C;&#x662F;&#x5426;&#x63D2;&#x5165;objNew,true&#x4E3A;&#x63D2;&#x5165;&#xFF0C;&#x9ED8;&#x8BA4;&#x662F;false&#xFF0C;&#x4E0D;&#x63D2;&#x5165;&#x3002;</li>
<li>multi : mongodb&#x9ED8;&#x8BA4;&#x662F;false,&#x53EA;&#x66F4;&#x65B0;&#x627E;&#x5230;&#x7684;&#x7B2C;&#x4E00;&#x6761;&#x8BB0;&#x5F55;&#xFF0C;&#x5982;&#x679C;&#x8FD9;&#x4E2A;&#x53C2;&#x6570;&#x4E3A;true,&#x5C31;&#x628A;&#x6309;&#x6761;&#x4EF6;&#x67E5;&#x51FA;&#x6765;&#x591A;&#x6761;&#x8BB0;&#x5F55;&#x5168;&#x90E8;&#x66F4;&#x65B0;&#x3002;</li>
</ul>
</blockquote>
<h4 id="&#x5339;&#x914D;&#x6570;&#x7EC4;&#x4E2D;&#x5355;&#x4E2A;&#x5B57;&#x6BB5;"><a name="&#x5339;&#x914D;&#x6570;&#x7EC4;&#x4E2D;&#x5355;&#x4E2A;&#x5B57;&#x6BB5;" class="anchor-navigation-ex-anchor" href="#&#x5339;&#x914D;&#x6570;&#x7EC4;&#x4E2D;&#x5355;&#x4E2A;&#x5B57;&#x6BB5;"><i class="fa fa-link" aria-hidden="true"></i></a>&#x5339;&#x914D;&#x6570;&#x7EC4;&#x4E2D;&#x5355;&#x4E2A;&#x5B57;&#x6BB5;</h4>
<blockquote>
<ul>
<li>&#x5C06;&#x7B2C;&#x4E00;&#x4E2A;&#x6587;&#x6863;&#x4E2D;grade&#x5B57;&#x6BB5;&#x4E2D;&#x503C;&#x4E3A;85&#x66F4;&#x65B0;&#x4E3A;1000&#xFF0C;&#x5982;&#x679C;&#x4E0D;&#x77E5;&#x9053;&#x6570;&#x7EC4;&#x4E2D;&#x5143;&#x7D20;&#x7684;&#x4F4D;&#x7F6E;&#xFF0C;&#x53EF;&#x4EE5;&#x4F7F;&#x7528;&#x4F4D;&#x7F6E;$&#x64CD;&#x4F5C;&#x7B26;</li>
<li>&#x8BF7;&#x8BB0;&#x4F4F;&#xFF0C;&#x4F4D;&#x7F6E;$&#x64CD;&#x4F5C;&#x7B26;&#x5145;&#x5F53;&#x66F4;&#x65B0;&#x6587;&#x6863;&#x67E5;&#x8BE2;&#x4E2D;&#x7B2C;&#x4E00;&#x4E2A;&#x5339;&#x914D;&#x7684;&#x5360;&#x4F4D;&#x7B26;, &#x53EA;&#x4FEE;&#x6539;&#x5339;&#x914D;&#x5230;&#x7684;&#x7B2C;&#x4E00;&#x4E2A;&#xFF0C;&#x5047;&#x8BBE;&#x6709;2&#x4E2A;85&#xFF0C; &#x9700;&#x8981;&#x6267;&#x884C;&#x4E24;&#x6B21;&#x624D;&#x80FD;&#x5168;&#x90E8;&#x66F4;&#x65B0;&#x3002;</li>
</ul>
</blockquote>
<pre class="language-"><code>db.collection.update(
   { <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>query</span> <span class="token attr-name">selector</span><span class="token punctuation">&gt;</span></span> },
   { <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>update</span> <span class="token attr-name">operator</span><span class="token punctuation">&gt;</span></span>: { &quot;array.$.field&quot; : value } }
)
</code></pre><pre class="language-"><code>db.students.insert({_id:1,grades:[80,85,90]})
db.students.insert({_id:2,grades:[88,90,92]})
db.students.insert({_id:3,grades:[85,100,90,85]})

db.students.update({_id:3, grades:85},{$set:{&apos;grades.$&apos;:1000}})
</code></pre><h4 id="&#x5339;&#x914D;&#x6570;&#x7EC4;&#x4E2D;&#x591A;&#x4E2A;&#x5B57;&#x6BB5;"><a name="&#x5339;&#x914D;&#x6570;&#x7EC4;&#x4E2D;&#x591A;&#x4E2A;&#x5B57;&#x6BB5;" class="anchor-navigation-ex-anchor" href="#&#x5339;&#x914D;&#x6570;&#x7EC4;&#x4E2D;&#x591A;&#x4E2A;&#x5B57;&#x6BB5;"><i class="fa fa-link" aria-hidden="true"></i></a>&#x5339;&#x914D;&#x6570;&#x7EC4;&#x4E2D;&#x591A;&#x4E2A;&#x5B57;&#x6BB5;</h4>
<blockquote>
<ul>
<li>&#x4F4D;&#x7F6E;&#x64CD;&#x4F5C;&#x7B26;$&#x80FD;&#x591F;&#x66F4;&#x65B0;&#x7B2C;&#x4E00;&#x4E2A;&#x5339;&#x914D;&#x7684;&#x6570;&#x7EC4;&#x5143;&#x7D20;&#x901A;&#x8FC7;$elemMatch()&#x64CD;&#x4F5C;&#x7B26;&#x5339;&#x914D;&#x591A;&#x4E2A;&#x5185;&#x5D4C;&#x6587;&#x6863;&#x7684;&#x67E5;&#x8BE2;&#x6761;&#x4EF6;</li>
<li>&#x5728;golang&#x4E2D; &#x7684;eleMatch &#x662F;match</li>
</ul>
</blockquote>
<p>&#x5982;&#x4E0B;&#x8BED;&#x53E5;&#x4F1A;&#x66F4;&#x65B0;&#x5D4C;&#x5957;&#x6587;&#x6863;&#x4E2D;&#x7684;std&#x503C;&#x4E3A;6&#xFF0C;&#x6761;&#x4EF6;&#x662F;&#x6587;&#x6863;&#x7684;&#x4E3B;&#x952E;&#x662F;4&#xFF0C;&#x5B57;&#x6BB5;grades&#x7684;&#x5D4C;&#x5957;&#x6587;&#x6863;&#x5B57;&#x6BB5;grade&#x5B57;&#x6BB5;&#x503C;&#x5C0F;&#x4E8E;&#x7B49;&#x4E8E;90mean&#x5B57;&#x6BB5;&#x503C;&#x5927;&#x4E8E;80</p>
<pre class="language-"><code>db.students.update(
   {
     _id: 4,
     grades: { $elemMatch: { grade: { $lte: 90 }, mean: { $gt: 80 } } }
   },
   { $set: { &quot;grades.$.std&quot; : 6 } }
)
</code></pre><h4 id="&#x6839;&#x636E;&#x6570;&#x7EC4;&#x7279;&#x5B9A;&#x4F4D;&#x7F6E;&#x7684;&#x5143;&#x7D20;-&#x5927;&#x5C0F;&#x6765;&#x67E5;&#x8BE2;"><a name="&#x6839;&#x636E;&#x6570;&#x7EC4;&#x7279;&#x5B9A;&#x4F4D;&#x7F6E;&#x7684;&#x5143;&#x7D20;-&#x5927;&#x5C0F;&#x6765;&#x67E5;&#x8BE2;" class="anchor-navigation-ex-anchor" href="#&#x6839;&#x636E;&#x6570;&#x7EC4;&#x7279;&#x5B9A;&#x4F4D;&#x7F6E;&#x7684;&#x5143;&#x7D20;-&#x5927;&#x5C0F;&#x6765;&#x67E5;&#x8BE2;"><i class="fa fa-link" aria-hidden="true"></i></a>&#x6839;&#x636E;&#x6570;&#x7EC4;&#x7279;&#x5B9A;&#x4F4D;&#x7F6E;&#x7684;&#x5143;&#x7D20; &#x5927;&#x5C0F;&#x6765;&#x67E5;&#x8BE2;</h4>
<blockquote>
<ul>
<li>Using dot notation, you can specify query conditions for an element at a particular index or position of the array. The array uses zero-based indexing.<pre class="language-"><code>db.inventory.find( { &quot;dim_cm.1&quot;: { $gt: 25 } } )
</code></pre></li>
</ul>
</blockquote>
<h4 id="query-an-array-by-array-length"><a name="query-an-array-by-array-length" class="anchor-navigation-ex-anchor" href="#query-an-array-by-array-length"><i class="fa fa-link" aria-hidden="true"></i></a>Query an Array by Array Length</h4>
<blockquote>
<ul>
<li>Use the $size operator to query for arrays by number of elements. For example, the following selects documents where the array tags has 3 elements.<pre class="language-"><code>db.inventory.find( { &quot;tags&quot;: { $size: 3 } } )
</code></pre></li>
</ul>
</blockquote>
<h3 id="query-an-array-of-embedded-documents"><a name="query-an-array-of-embedded-documents" class="anchor-navigation-ex-anchor" href="#query-an-array-of-embedded-documents"><i class="fa fa-link" aria-hidden="true"></i></a>Query an Array of Embedded Documents</h3>
<h4 id="query-for-a-document-nested-in-an-array"><a name="query-for-a-document-nested-in-an-array" class="anchor-navigation-ex-anchor" href="#query-for-a-document-nested-in-an-array"><i class="fa fa-link" aria-hidden="true"></i></a>Query for a Document Nested in an Array</h4>
<blockquote>
<ul>
<li>The following example selects all documents where an element in the instock array matches the specified document:
```
db.inventory.insertMany( [
 { item: &quot;journal&quot;, instock: [ { warehouse: &quot;A&quot;, qty: 5 }, { warehouse: &quot;C&quot;, qty: 15 } ] },
 { item: &quot;notebook&quot;, instock: [ { warehouse: &quot;C&quot;, qty: 5 } ] },
 { item: &quot;paper&quot;, instock: [ { warehouse: &quot;A&quot;, qty: 60 }, { warehouse: &quot;B&quot;, qty: 15 } ] },
 { item: &quot;planner&quot;, instock: [ { warehouse: &quot;A&quot;, qty: 40 }, { warehouse: &quot;B&quot;, qty: 5 } ] },
 { item: &quot;postcard&quot;, instock: [ { warehouse: &quot;B&quot;, qty: 15 }, { warehouse: &quot;C&quot;, qty: 35 } ] }
]);</li>
</ul>
</blockquote>
<p>db.inventory.find( { &quot;instock&quot;: { warehouse: &quot;A&quot;, qty: 5 } } )</p>
<pre class="language-"><code>
#### Equality matches on the whole embedded/nested document require an exact match of the specified document, including the field order. For example, the following query does not match any documents in the inventory collection:
</code></pre><p>db.inventory.find( { &quot;instock&quot;: { qty: 5, warehouse: &quot;A&quot; } } )</p>
<pre class="language-"><code>
#### Specify a Query Condition on a Field in an Array of Documents
</code></pre><p>db.inventory.find( { &apos;instock.qty&apos;: { $lte: 20 } } )</p>
<pre class="language-"><code>
#### Use the Array Index to Query for a Field in the Embedded Document
</code></pre><p>db.inventory.find( { &apos;instock.0.qty&apos;: { $lte: 20 } } )</p>
<pre class="language-"><code>
#### Specify Multiple Conditions for Array of Document
&gt; * When specifying conditions on more than one field nested in an array of documents, you can specify the 
query such that either a single document meets these condition or any combination of documents (including 
a single document) in the array meets the conditions.
</code></pre><p>db.inventory.find( { &quot;instock&quot;: { $elemMatch: { qty: 5, warehouse: &quot;A&quot; } } } )
db.inventory.find( { &quot;instock&quot;: { $elemMatch: { qty: { $gt: 10, $lte: 20 } } } } )</p>
<pre class="language-"><code>
#### Combination of Elements Satisfies the Criteria
If the compound query conditions on an array field do not use the $elemMatch operator, the query selects those 
documents whose array contains any combination of elements that satisfies the conditions.

For example, the following query matches documents where any document nested in the instock array has the qty 
field greater than 10 and any document (but not necessarily the same embedded document) in the array has the 
qty field less than or equal to 20:
</code></pre><p>db.inventory.find( { &quot;instock.qty&quot;: { $gt: 10,  $lte: 20 } } )
db.inventory.find( { &quot;instock.qty&quot;: 5, &quot;instock.warehouse&quot;: &quot;A&quot; } )</p>
<pre class="language-"><code>
### Project Fields to Return from Query
#### Return the Specified Fields and the _id Field Only
</code></pre><p>db.inventory.insertMany( [
  { item: &quot;journal&quot;, status: &quot;A&quot;, size: { h: 14, w: 21, uom: &quot;cm&quot; }, instock: [ { warehouse: &quot;A&quot;, qty: 5 } ] },
  { item: &quot;notebook&quot;, status: &quot;A&quot;,  size: { h: 8.5, w: 11, uom: &quot;in&quot; }, instock: [ { warehouse: &quot;C&quot;, qty: 5 } ] },
  { item: &quot;paper&quot;, status: &quot;D&quot;, size: { h: 8.5, w: 11, uom: &quot;in&quot; }, instock: [ { warehouse: &quot;A&quot;, qty: 60 } ] },
  { item: &quot;planner&quot;, status: &quot;D&quot;, size: { h: 22.85, w: 30, uom: &quot;cm&quot; }, instock: [ { warehouse: &quot;A&quot;, qty: 40 } ] },
  { item: &quot;postcard&quot;, status: &quot;A&quot;, size: { h: 10, w: 15.25, uom: &quot;cm&quot; }, instock: [ { warehouse: &quot;B&quot;, qty: 15 }, { warehouse: &quot;C&quot;, qty: 35 } ] }
]);</p>
<p>db.inventory.find( { status: &quot;A&quot; }, { item: 1, status: 1 } )
```</p>
<p><a href="https://blog.csdn.net/yaomingyang/article/details/78696759" target="_blank">&#x539F;&#x6587;&#x94FE;&#x63A5;</a>
<a href="https://docs.mongodb.com/manual/reference/method/db.collection.aggregate/" target="_blank">mongodb_doc</a>
<a href="https://segmentfault.com/a/1190000016629733" target="_blank">group_aggregate</a></p>
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